FORMAT:
This is a 1/8 mile heads-up class run on a .400
pro tree with a pro ladder. X275 is a qualified
quick 8 field. Courtesy staging and auto-start is
in effect. There will also be another class called
“The Shootout” for qualifiers #9-16, and it will
be run on a pro ladder. This allows non-qualifiers
to compete for additional points and a place to
race. (At larger events 2 – 16 or 3 – 8 or 3 -16
car fields or all-run format may be used) THIS IS
A SINGLE POWER ADDER CLASS ONLY!

SAFETY:
All NHRA/IHRA and Local Track Safety rules apply
for driver and car, including the use of an oil
retention device or engine diaper.

BALLAST:
Any material used for the purpose of adding to a
car's total weight must be permanently attached to
the car's structure and must not extend in front
of or behind the rear of the car's body. No liquid
or loose ballast permitted (i.e., water, sandbags,
rock, shot bags, metal weights, etc.)Removable
weight must be securely mounted to the frame or
frame structure by a minimum of two 1/2 inch
diameter steel bolts per 100 pounds, or one 3/8
steel bolt per 5 pounds; all other weight bars,
pucks etc. Must use a minimum 2 - 1/2 inch
diameter SAE grade 8 bolts for attachment per 100
pounds.

BODY:
The car must retain its original appearance,
profiles, and dimensions. Factory roof and quarter
panels must be used. 2005 and newer vehicles
permitted replacement roof panel. Factory firewall
must be in factory location, notching/smoothing
permitted but must be identifiable as stock
location. Aftermarket fiberglass and/or carbon
fiber replacement panels are limited to hood,
front fenders, doors, deck-lids, and bumpers only.
All front ends must be of factory dimensions and
cannot be lengthened and must meet all NHRA/IHRA
height. (See ground clearance note below). Any
beam tripping devices forward of the bumper are
prohibited. (Track tech official will have final
say) Aftermarket wings and spoilers are permitted.
Complete stock appearing front and rear bumpers
are required. A hood must be used: scoop or hood
must cover the entire induction system. Forward
facing hood scoops/ turbo or supercharger inlets
are permitted.

CHASSIS:
Complete stock chassis and frame rails must be
retained from motor plate/shock tower to behind
the rear wheel opening. Back-halved cars are not
permitted. Front core support may be modified or
removed. Aftermarket bolt-on replacement front
K-members/sub frames are allowed (if front shocks
bolt to K-member then they must be in factory
location, only Chevy II or Dart permitted strut
conversion). Shock tower can be notched or trimmed
but must be in factory location, verifiable by the
factory sheet metal being retained between frame
rail and top of tower. Mini tubs are allowed. Rear
frame rails may be notched for clearance and must
be in the factory location. Factory wheelbase must
be maintained. (+ or – 1 inch)

ENGINE:
Maximum displacement for all engines is listed
below. Small blocks nos are allowed any deck
height but must retain stock bore spacing. Big
block allowed the following deck heights but must
retain stock bore spacing. GM Big Blocks are
limited to a 10.2 deck height. Ford Big Blocks are
limited to a 10.3 deck height. Mopar Big Blocks
are limited to a 10.7 deck height. (Cylinder head
specs and list for BB Nitrous Combos
attached)(Billet SB/BB blocks permitted with cast
head only and +50 lbs.)

TURBOCHARGERS:
Single turbocharger limited to 88 mm maximum.
(Garrett GTX55-88, Exile ETR-88, or = Forced
Induction, Comp, Bullseye - mid frame or current
(2013) Gen II Pro Mod MF88, PTE LF85 or LF88
turbos only). GARRET GTX GEN II Permitted.
Turbocharger size will be verified by measuring
the housing bore at the leading edge of the
impeller wheel and must maintain the contour of
the compressor housing. (Stepped or Clipped
compressor wheel prohibited) Inducer dimensions
will not exceed 3.462 inches and Exducer
dimensions will not exceed 4.765 inches on MID
FRAME turbos. Inducer dimensions will not exceed
3.462 inches and Exducer dimensions will not
exceed 5.56 inches on LARGE FRAME turbos. The
maximum diameter of the housing bore at the
leading edge of the wheel may not exceed 2 mm more
than the maximum allowable turbocharger size
permitted. Inserts or reducers to achieve inlet or
outlet dimensions prohibited. Any type of air to
air or water to air intercooler permitted.
Turbochargers w/nitrous-oxide prohibited except on
2-rotor, 4 cylinder, and inline 6 cylinder
engines.

SUPERCHARGERS:
Cog or gear driven superchargers are permitted,
must meet all factory inlet, outlet, and internal
housing dimensions. Inserts or reducers to achieve
inlet or outlet dimensions prohibited. Any type
intercooler is permitted. Supercharger cannot be
combined with nitrous oxide. Roots superchargers
are limited to the 8-71. Centrifugal superchargers
are permitted. Screw superchargers are not
permitted.

NITROUS OXIDE:
Small block is permitted to run any type
multi-stage nitrous systems. Big blocks are
limited to a single stage fogger (2 nitrous
solenoids, no limit on fuel solenoids) and two
bottles are permitted or if using a single plate
then your limited to (1 fuel solenoid, 1 nitrous
solenoid), and 1 purge solenoid, purge must exit
engine compartment. Big Block & Small block
nitrous are permitted water injection. All EFI Big
Blocks will only be allowed 2 nitrous solenoids
for a dry nitrous system and will only have 1 line
per nozzle/per cylinder. (Using both sides of the
fogger nozzle on a dry EFI NOS BB combo are
permitted)(Cold nitrous systems permitted on big
block combo and permitted on small block combo)
All lines on big block combo must be visible and
continuous from bottle to wye without
interruption.

INDUCTION:
Small Block combinations may run any type
induction. Big Block Nitrous combinations are
limited to a dedicated single opening cast intake
or cast tunnel ram with a single carb or a single
4150 or 4500 series throttle body. (4 blade, dual
blade or single blade throttle body permitted).
Big Block N/a can run any style intake and carb/TB
combo.

OILING SYSTEM:
Dry sump oiling systems are permitted on all cars

EXHAUST:
Mufflers or inserts are required on all cars
except for turbo cars. Exhaust may exit underneath
car or out the front fenders but must not affect
timing or staging beams.

FUEL:
Gasoline/Alcohol/E85 permitted on all
applications. Weights are based on gasoline
(including E85) as the fuel. Any use of M1 will
incur a 50 pound weight add. M1 used in addition
to an intercooler is NOT permitted. Water
injection permitted on SB/BB NOS combos only.

STREET EQUIPMENT:
Functional headlights, taillights and brake lights
required. All headlights, brake lights, etc. must
be on car and not removed for any reason. All
vehicles may be towed back from their passes.

SUSPENSION:
Stock style or ladder bar suspension cars only,
stock rear frame rail must be permanently attached
and in the stock type location. Aftermarket direct
replacement components such as: front control
arms, rear control arms, front coil over shocks,
and rear coil over shocks are permitted.
Aftermarket rack and pinion steering allowed. Rear
leaf springs, springs, shocks, and coil-overs may
be moved to accommodate tire clearance, and do not
need to be mounted in stock location. Bolt-on or
welded sub-frame connectors, rear sway bars, are
permitted on all cars. Wheelie bars are prohibited
on all cars. Torque arms are only permitted on
cars that were originally equipped from factory
with it. (See notes below) Upper and Lower control
arms must be mounted in the factory style chassis
locations -S Box permitted.
** Late model GTO and 5th gen Camaro permitted
bolt in torque arm style suspension
**Late model Mustang (Cobra Jet style), Camaro (COPO),
and Mopar Drag Pak permitted on their respective
body type.